Spectacle wearing in children randomised to ready-made or custom spectacles, and potential cost savings to programmes: study protocol for a randomised controlled trial

Trials
Priya MorjariaC Gilbert

Abstract

Uncorrected refractive errors are the commonest cause of visual impairment in children, with myopia being the most frequent type. Myopia usually starts around 9 years of age and progresses throughout adolescence. Hyperopia usually affects younger children, and astigmatism affects all age groups. Many children have a combination of myopia and astigmatism. To correct refractive errors, the type and degree of refractive error are measured and appropriate corrective lenses prescribed and dispensed in the spectacle frame of choice. Custom spectacles (that is, with the correction specifically required for that individual) are required if astigmatism is present, and/or the refractive error differs between eyes. Spectacles without astigmatic correction and where the refractive error is the same in both eyes are straightforward to dispense. These are known as 'ready-made' spectacles. High-quality spectacles of this type can be produced in high volume at an extremely low cost. Although spectacle correction improves visual function, a high proportion of children do not wear their spectacles for a variety of reasons. The aim of this study is to compare spectacle wear at 3-4 months amongst school children aged 11 to 15 years who have signif...Continue Reading

References

Mar 1, 2006·Investigative Ophthalmology & Visual Science·Aaron M Castanon HolguinBeatriz Munoz
Feb 1, 2008·Bulletin of the World Health Organization·Serge ResnikoffGopal P Pokharel
Dec 10, 2008·Ophthalmic Epidemiology·Nita OdedraClare Gilbert
Jul 2, 2010·The Journal of School Health·Danna EthanPatricia Zybert
Nov 16, 2010·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Jerry E VincentPaul R Amendola
Oct 18, 2011·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Dawn H MesserUNKNOWN CLEERE Study Group
Mar 9, 2012·Survey of Ophthalmology·Abhishek SharmaClare Gilbert
May 10, 2012·Indian Journal of Ophthalmology·Neeti RustagiDevender K Taneja
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Jan 1, 2013·Indian Journal of Ophthalmology·Parikshit GogateBrien Holden
Oct 31, 2014·Ophthalmic Epidemiology·Fernando Barria von-BischhoffshausenJuan Carlos Silva

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